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Digital Chalk
Keep your staff up to date with training courses from the experts at SHERMCO.
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Showing 17–32 of 33 results
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Medium Voltage Cable Testing and Diagnostics Series
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Medium voltage cable systems are the backbone of electrical systems worldwide, yet often they are the most ignored part of…
$300.00 -
Medium Voltage SF6 Switches
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There are many different manufacturers of this type of equipment: G&W and S&C are two of the large manufacturers in…
$95.00 -
Motor Starting Methods
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This training session will discuss the different types of starters, why we use reduced voltage starting methods, and will show the limitations…
$95.00 -
Power Factor Correction Series
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The power factor correction is a technique of increasing the power factor of a power supply. Switching power supplies without…
$185.00 -
System Grounding Methods
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Resistance Grounding Systems are used in industrial electrical power distribution facilities to limit phase-to-ground fault currents. IEEE Standard 142-1991 states:…
$95.00 -
Transformer – Power Factor and Tip-up Testing Series
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Most electrical equipment failures are the result of insulation deterioration. Power factor testing is the most effective and common way…
$185.00 -
Transformer – Power Factor and Tip-up Testing Series
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The power factor correction is a technique of increasing the power factor of a power supply. Switching power supplies without…
$185.00 -
Transformer Testing – Dissolved Gas Analysis
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The detection of certain gases generated in an oil-filled transformer in service can be an indication of a malfunction that…
$95.00 -
Transformer Testing – Oil Tests
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Insulating oils are used in power transformers to provide cooling, insulation, and protection against corona and arcing. Transformer oils are…
$95.00 -
Transformer Testing – Turns Ratio Measurements
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Measuring transformer ratio from one external terminal to another reveals a great deal of information about the transformer. Transformers are…
$95.00 -
Transformer Testing – Winding Resistance Measurements
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Winding resistance measurements in transformers are of fundamental importance for the following purposes: calculations of the I2R component of conductor losses;…
$95.00 -
Transformer Testing – Sweep Frequency Response Analysis
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Sweep frequency response is a major advance in transformer condition analysis, allowing visualization of the inside of a transformer’s tank…
$95.00 -
Transformers – Demagnetization of Power Transformer Cores
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After a power or distribution transformer is disconnected from the power grid, or when a DC current is applied to…
$95.00 -
Transformers – Excitation Current Testing Series
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The excitation test is one of many tests typically used to verify the overall “health” of the transformer; it is…
$185.00 -
Transformers – Working Principles
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With an understanding of the construction and maintenance of transformers, you will be able to make informed decisions about the…
$95.00 -
Understanding Time Current Curves
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A time current curve (TCC) plots the interrupting time of an overcurrent device based on a given current level. These…
$95.00